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Radeon HD 6670 (OEM) 1GB vs Radeon HD 7750
Intro
The Radeon HD 6670 (OEM) 1GB features a GPU core clock speed of 800 MHz, and the 1024 MB of GDDR5 memory runs at 1000 MHz through a 128-bit bus. It also is comprised of 480 SPUs, 24 Texture Address Units, and 8 ROPs.Compare those specifications to the Radeon HD 7750, which has GPU core speed of 800 MHz, and 1024 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 512 Stream Processors, 32 TAUs, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7750 |
|
55 Watts |
| Radeon HD 6670 (OEM) 1GB |
|
63 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon HD 7750 should be a bit faster than the Radeon HD 6670 (OEM) 1GB in general. (explain)
| Radeon HD 7750 |
|
72000 MB/sec |
| Radeon HD 6670 (OEM) 1GB |
|
64000 MB/sec |
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Texel Rate
The Radeon HD 7750 should be a lot (about 33%) more effective at texture filtering than the Radeon HD 6670 (OEM) 1GB. (explain)| Radeon HD 7750 |
|
25600 Mtexels/sec |
| Radeon HD 6670 (OEM) 1GB |
|
19200 Mtexels/sec |
|
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Pixel Rate
The Radeon HD 7750 will be a lot (about 100%) more effective at anti-aliasing than the Radeon HD 6670 (OEM) 1GB, and able to handle higher resolutions while still performing well. (explain)| Radeon HD 7750 |
|
12800 Mpixels/sec |
| Radeon HD 6670 (OEM) 1GB |
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6400 Mpixels/sec |
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Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
Price Comparison
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
Radeon HD 6670 (OEM) 1GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 7750Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | Radeon HD 6670 (OEM) 1GB | Radeon HD 7750 |
|---|---|---|
| Manufacturer | ATi | ATi |
| Year | February 2011 | February 2012 |
| Code Name | Turks | Cape Verde Pro |
| Fab Process | 40 nm | 28 nm |
| Bus | PCIe 2.1 x16 | PCIe 3.0 x16 |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 800 MHz | 800 MHz |
| Shader Speed | N/A MHz | (N/A) MHz |
| Memory Speed | 1000 MHz (4000 MHz effective) | 1125 MHz (4500 MHz effective) |
| Unified Shaders | 480 | 512 |
| Texture Mapping Units | 24 | 32 |
| Render Output Units | 8 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 128-bit |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.2 |
| Power (Max TDP) | 63 watts | 55 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 64000 MB/sec | 72000 MB/sec |
| Texel Rate | 19200 Mtexels/sec | 25600 Mtexels/sec |
| Pixel Rate | 6400 Mpixels/sec | 12800 Mpixels/sec |
Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.
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